Benzohydroxamic Acid Photodegradation by Prepared Ce Modified TiO2

被引：0
|
作者：
Wang J. [1 ]
Wang C. [1 ,2 ]
Zhu S. [1 ]
Luo X. [1 ,2 ]
Li Z. [1 ]
Xu L. [1 ]
机构：
[1] Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Faculty of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou
[2] Post-Doctoral Scientific Research Workstation of Western Mining Co., Ltd., Xining
来源：
Luo, Xianping (lxp9491@163.com) | 2018年 / Editorial Office of Chinese Journal of Rare Metals卷 / 42期
关键词：
Benzohydroxamic acid; Ce/TiO[!sub]2[!/sub; Photocatalytic degradation; Rare earth doped;
D O I：
10.13373/j.cnki.cjrm.XY16080006
中图分类号：
学科分类号：
摘要：
Rare earth element Ce doped TiO2 (Ce/TiO2) was synthesized by sol-gel method. Benzohydroxamic acid was used as the objective pollutant to investigate the photocatalytic activity of Ce/TiO2. The structure and physicochemical properties of prepared materials were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), and so on. As a result, the doping of Ce could inhibit the crystal growth of TiO2, retain a smaller grain size, increase its specific surface area, and improve the photocatalytic activity of Ce/TiO2. The crystallinity was good when the doping ratio of Ce to TiO2 was 0.20%. The prepared Ce/TiO2 particles were more uniform, and of stronger optical absorption properties. Ce/TiO2 with the doping ratio of 0.20% calcined at 500 ℃ showed the highest photocatalytic activity to degrade benzohydroxamic acid. After 120 min, the removal rate of benzohydroxamic acid reached 90.98% (0.3 g•L-1 of Ce/TiO2), and 82.8% of the total organic carbon was eliminated. In addition, after four recycling runs, Ce/TiO2 (0.20%) still kept high photocatalytic activity on the photodegradation of benzohydroxamic acid. ©2018, Editorial Office of Chinese Journal of Rare Metals. All right reserved.
引用
收藏
页码：393 / 401
页数：8
相关论文
共 33 条
  • [1] Li H.X., Shi Z.M., Liu H.W., Humidity sensing properties of La<sup>3+</sup>/Ce<sup>3+</sup>-doped TiO<sub>2</sub>-20 wt.% SnO<sub>2</sub> thin films derived from sol-gel method, Journal of Rare Earths, 28, 1, (2010)
  • [2] Hamidah A., Maksudur R.K., Manoj P., Zahira Y., Nur A.I., CeO<sub>2</sub>-TiO<sub>2</sub> as a visible light active catalyst for the photoreduction of CO<sub>2</sub> to methanol, Journal of Rare Earths, 33, 11, (2015)
  • [3] Du J.H., Yan J.K., Zhang J.M., Liu Y.C., Gan G.Y., Yi J.H., Preparation otimization of La<sup>3+</sup> doped TiO<sub>2</sub> powder by chemical precipitation, Rare Metal Materials and Engineering, 44, 11, (2015)
  • [4] Bingham S., Daoud W.A., Recent advances in making nano-sized TiO<sub>2</sub> visible-light active through rare-earth metal doping, Journal of Materials Chemistry, 21, 7, (2011)
  • [5] Stengl V., Bakardjieva S., Murafa N., Preparation and photocatalytic activity of rare earth doped TiO<sub>2</sub> nanoparticles, Materials Chemistry and Physics, 114, 1, (2008)
  • [6] Kang J.L., Yao L.F., Yang S.L., Wang Y.Q., Liang X., Huang Y., Preparation and photocatalytic activity of Ce-doped TiO<sub>2</sub> composite nanometer films, Journal of Synthetic Crystals, 42, 4, (2013)
  • [7] Xue H.S., Gu M., Xing Z.H., Rao J.S., Pan F.S., Synthesis and photoluminescence of Gd-doped TiO<sub>2</sub> nanotubes, Chinese Journal of Rare Metals, 39, 12, (2015)
  • [8] Luo X.P., Chen C.F., Liang R.Z., Wang J.Y., Wang C.Y., Preparation of La/TiO<sub>2</sub> and photocatalytic degradation of floatation collector ester-105, Chinese Journal of Rare Metals, 39, 11, (2015)
  • [9] Yan N.N., Zhang Y., Gong C.J., Zhu Z.Q., Liu Q.J., Preparation and properties on rare-earth element cerium doped nano-titanium dioxide photocatalyst, Journal of Functional Materials, 1, 43, (2012)
  • [10] Zhang Y., Yuwono A.H., Wang J., Li J., Enhanced photocatalysis by doping cerium into mesoporous titania thin films, Journal of Physical Chemistry C, 113, 51, (2009)
1234